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Título: | Micromolar HgCl2 concentrations transitorily duplicate the ATP level in Saccharomyces cerevisiae cells |
Autor: | Silles, Eduardo CSIC; Osorio, Hugo; Maia, Rita; Günther Sillero, María A.; Sillero, Antonio CSIC | Fecha de publicación: | 2005 | Editor: | Elsevier | Citación: | FEBS Letters 579(19): 4044-4048 (2005) | Resumen: | Low concentrations of HgCl2 elicited, in Saccharomyces cerevisiae, a transitory increase in the ATP level followed by a decrease of its concentration, until almost disappearance. At 1 μM HgCl2, the increase in ATP lasted for about 30 min, while at 10 μM the increase was only observed in the first 5 min of treatment. The initial burst of ATP was accompanied by a decrease in the level of hexose phosphates, whereas during the decrease of ATP an increase in the inosine and hexose phosphates levels took place. The treatment with HgCl2 inhibited the plasma membrane proton ATPase but not the activities of hexokinase or 6-phosphofructokinase. © 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved. | URI: | http://hdl.handle.net/10261/81165 | DOI: | 10.1016/j.febslet.2005.06.017 | Identificadores: | doi: 10.1016/j.febslet.2005.06.017 issn: 0014-5793 e-issn: 1873-3468 |
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